Side-seam-soldering machine for can bodies



J. BRENZINGER. SIDE SEAM SOLDERING MACHINE roe CAN BODIES.

7 APPLICATION FILED OCT-6, 19'9- I 1,419,21 1 Patented June 13, 1922.

I a SHEETS-SHEET 1. I y

J. BRENZINGER. I SIDE SEAM sowgnmc MACHINE FOR CAN BODIES.

Patntefi June 13, 1922.

8 SHEETS-SHEET 2.

APPLICATION FILED OCT-6, I919.

J. BRENZINGER. SIDE SEAM SOLDERING MACHINE FOR CAN BODIES.

, APPLICATION FILED OCT. 6, I919- 1,419,21 1 I Patented une 13, 1922.

8 SHEETSSHEET 3- J. BRENZINGER. SIDE SEAM SOLDERING MACHINE FOR CAN BODIES.

APPLICATION FILED 0CT.6,1919. I PaMnmedJune13,1922.

8 SHEETS-SHEET 4.

J. BRENZINGER.

SIDE SEAM SOLDERING MACHINE FOR CAN BODIES.

APPLICATION FILED 0CT.6, 1919..

8 SHEETS-SHEET 5.

Patented June 13 1922.

J. BRENZINGER. SIDE'SEAM SOLDERING MACHINE FOR CAN, BODIES.

APPLICATION FILED OCT. 6,1919.

Patented June 13, 1922.

8 SHEETS-SHEET 6.

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Q rn MK H MH WW h J. BRENZlNGER. SIDE SEAM SOLDERING MACHINE FOR.C AN BODIES.

APPLICATION FILED OCT.6, 1919.

Patented June 13-, 1922.

8 SHEETS-SHEET I.

J. BRENZINGER. SIDE SEAM SOLDERING MACHINE FOR CA'N BODIES.

I APPLICATION FILED OCT. 6, I919. 1,419,21 1. PatentedJuneB, 1922.

8 SHEETS-SHEET 8.

' reins.

JULIUS BRENZECNGER, OLE FAIRFIELD, CONNECTICUT, ASSIGNOR TO THE MAX AMS ltIACHINE CO1VI?ANY, 0 NEW YORK, N. Y., A CURPORATION OF NEW YORK.

SIDE-SEAM-SOLDERING MACHINE FOR CAN BODIES.

Let-19,2 11.

Specification of Letters Patent.

Patented June 13, 1922.

Application filed. tlcto'ber 6, 1919. Serial No. 328,678.

To a whom it may concern:

Be it known that l, demos BRENZINGER, a citizen oi the United States, and a resident oi Fairiielth in the county of Fairtield and State of Connecticut, have invented certain new and uselul lniprovementsin Side-Seam- Solderinglsilachines for Can Bodies, of which the 'liollowing is a specification.

'l'his invention relates generally to mechanism appurtenant to can-body forming machines for applying solder exteriorly to the interlocked, side seams of the formed can bodies.

The modern socalled sanitary can is the result of eilorts to eliminate solder, partly tor the purpose of el'lecting a substantial increase in the output capacity of harming; and heading machines beyond the maximum possible with approved all-soldering processes, and partly on account of the real or supposed objectionable results of the chemical action of the acids of fruits and other packed perishablefood products upon solder and the residue of the necessary luring operations preliminary to soldering. The \\'elll(no\\n double-seaming process of 'securiiu the end or top and bottom portions to the body piiirtions oi so called tin cans eli'ects a. permanent airtight seam rapidly, expeditiously and without the use of solder. the intercurliiug and compressing; of curved edges oi the slit ..t metal resulting in the formation oi a joint of even greater strength than was possible under any of the old soldering processes.

(on bod ies. particularly those of the cylindrical or round type, are formed from l'lat sl'ieet-metal blanks which are curled or curved around a suitable mandrel, opposite end edges of each blank having been bent or 'lolded back to provide oppositely-disposed hooks whereby these end edges may he interhoolreiil during}; and at the end of the 'lorming; operation and the interhoolced portions then compressed to produce asubstantially solid seam. Theoretically. of course. it the pressure has been sufficient. this seam may he made strong and hermetic. but in practice. particularly under present necessary conditions of great rapidity of operation of machines. a seam so formed is not considered to be in itsell sufliciently dependable. It is. however. of such character that solder may he applied to the exterior thereof ina manner to insure impermeability and the requisite strength practically without the slightest risk of any of the solder reaching the interior of can body and without the necessity of curtailing the maximum output capacity of forming and heading machines of approved modern construction and operation. 'lherel ore it has been found desirable, and it the present practice, to apply soldcr exterior-1y to the hook-formed or socalled interlocked side seams of can bodies.

To apply the solder to these side seams, it has been the general practice-to pass the :tormed can body .from the mandrel to a horn or track which supports the body interiorly and along which it is conveyed with the side seam for a time in contact witha rotatin roller which dips into a bath of molten solder. In connection with such a soldering process, at least two essentials are instantly apparent. F irst, the horn being relatively of considerable length, while one end thereof may be rigidly supported by the mandrel, of which it may be said to be a. continuation, the other end thereof must be so siuiported as to permit of the ready passage oi the surrounding can bodies along the same during the soldering operation and ultimate discharge of said bodies from the far or free endthereof. Second, the can bodies must be held against rotation while in transit along the horn, for it permitted to rotate thereon under the frictional forcesgeneated by the rotating sol dering roller in contact therewith. the seam to be soldered would be carried out of contact with the roller and the solder applied uselessly to the flat side of the blank.

Theo-tar as the above-recited first essential is concerned. the free end of the horn uinlouhtedly may beand in many types ot side-seam soldering machines now in use is--supported upon roller or rollers between which. and the horn the advancing can body may be passed; but it has been found that owing to the weight of the rollersupported parts and. the consequent resistance to movement of the can body along the horn at the point or points of support. said body-and. particularly. the freshly soldered side seam thcre0fis likely to be and frequently is unduly distorted. Therefore. it is undoubtedly most desirable that the horn be so supported as to permit of absolutely free, unobstructed and unimpeded passage of the can body along and ultimately off the horn.

ln-so-tar as the above-recited second essential is concerned, in a co-pending application, tiled by me January 31, 1919, 5erial No. 274,194, I have shown and described means for conveying can bodies successively from the forming mandrel to and along the horn under action 01 the rotating soldering roller with each of said bodies held against rotation onsaid horn. As atpresent advised, I prefer to incorpo ate these means in the machine of the present invention, although it is to be understood that this invention, is not to be limited. to any specific form or type of means for preventing rotation of the can bodies while in transit on the horn. the prin 1-ipal object of the invention being the provision of a machine in which the free end of the horn is supported in the manner and for the purposes generally outlined in the foregoing paragraph.

As stated in my co-pending application, aforesaid, a soldering machine of the type herein shown and described is primarily designed to form a link in a chain of machines which cooperate progressively to produce a completed can body, with its end flanges, from a flat sheet-metal blank. In spite of a high degree of perfection of machinery and the utmost care in the operation thereof. due to irregularities and imperfections in the metal operated upon, and other unavoid able causes, blanks become distorted and jammed in the forming mechanism and delivei ies o'li' formed can bodies to the soldering horn are checked. (.lbviously, operation of the forming mechanism at least must be instantly stopped. tor clearance and readjustment, but, in the meantime, soldered and partially soldered can bodies are on the horn, the "Former still to undergo the finishing or wiping operation and the latter with the soldering operation uncompleted.

Undoubtedly, the soldering, wiping and discharging operations should be continued in connection with can bodies which have al.-

ready been delivered from the mandrel to' the horn, and obviously operation of the en tire chain of machines, or even of the forming mechanism alone. cannot practicably be continued for this purpose. Therefore, the mechanism for rotating the soldering roller,

that for rotating the finishing or Wiping source 01 power, so that independent opera tion of the former, either by hand or power,

may be continued after operation of the lat-- tors-and, particularly, the tormmgnnecha msm-has been stopped.

Another object 01": the invention, therefore, is the provision of 1I182lIlS-Stlch, tor exanr pie, as the interposition or a clutch and means for independent hand actuation-for continuing operation. of the can-body advancing, soldering and finishing mechanisms independently after checking operation of mechanism or mechanisms comprising another or other parts of the chain of machines.

Other minor although possibly important objects of my invention are believed to be made apparent .in the following specification in which I have described a practical and convenient embodiment of the invention, reference being had to the accompanying drawings forming a part hereof, in which- Fig. 1 is a side elevation of that portionapproximately one-halt -of a machine embodying my invention adjacent to the blank-forming machine;

Fig. 2 is a similar view of the remainder of the machine, the same being a continuation of Fig. 1;

Figs. 3 and at are plan views of Figs. 1 and 2, respectively;

F ig. 5 is a slightly enlarged vertical cro section, taken substantially on the line 5- of Fig. 3;

Fig. 6 is an enlarged plan view of a portion of Fig. 4, showing the can body in the position of being fed from the horizontallydisposed conveyer-chain into the path of the vertically-disposed conveyer-chain, as here inafter described;

Fig. 7 is an enlarged side elevation 01'' a portion of Fig. 2, partly in section, showing the can body about to be discharged from the horn, and y Fig. 8 is an end elevation of Fig. 6.

As hereinbe'fore suggested, the machine oi. the present invention is primarily designed to be appurtenant to what is known as a can-body forming machine, such, for example, as the machine-or the forming mocha-- nisin which is a link in the chain olf' interrelated mechanisms-shown and described in patent to Paul R. Hahnemann, dated October 3, 1916. No. 1,200,190. in, which means including a yieldingly contractile mandrel are provided tor forming a can body from a flat sheet-metal blank. inter hooking the hook-formed ends thereof. conr pressing the inter-hooked end portions to form a seam and ejecting the formed can body from the mandrel.

Referring now to the accompanying drawings in detail, numeral 11 designates the body-forming mandrel. or an extension thereof to which I have shown telescopically connected, for purposes of guiding and support, one end oi the horn or trad; 12.- preferably comprising guide-rails 13 and 14- spaced apart by blocks 15 15 located at in-- tervals throughout the length of said rails, adapted to receive the formed can body from the mandrel and guide its further advancement, the whole being laterally dimensioned and shaped to conform to the contour of a can body of standard size and tend to preserve such contour as said body and those following are advanced along the same.

The supporting frame of the machine may and preferably does include the sidebarschannel-bars, as sl1own16 and 1'7, supported from the floor by means of the legs 18 18, and carried by this frame near what may be termed the mandrel-end thereof an elongated tank 19 adapted to contain molten solder. A pipe 20, leading from any suitable source of supply of inflammable gas, terminates in a burner 21, whereby the contents of said tank 19 may be kept in a heated and therefore molten condition. Rotatively mounted to dip into the molten solder 22 in the tank 19 is the roller 23. Obviously, upon rotation of said roller, a film of molten solder will adhere thereto and be carried upwardly on the upwardly-rotating side thereof. 1

Suitably journaled in the frame of the machine and-in the machine shown-in a standard 24 secured to the floor is a horizontal shaft 25, driven in any desired and approved manner from a source of power which, for purposes of synchronization, is common to both forming and soldering mechanisms, as by a chain from a primary driving element passing around a sprocket on said shaft, the sprocket 27 thereon serving through a similar connection to drive the forming mechanism-the latter not being shown in view of the fact that except for the connection therewith it forms no part of the present invention. Mounted on this shaft .is the bevel-gear 28 the teeth of which mesh with the teeth of a similar gear 29 on a shaft 30 journaled in brackets or arms 31 and carried by the side-bar 17 of the frame. The soldering roller 23 is rotated from the shaft 80 by means of a belt 33 which passes around pulleys on the axle 34 of said roller and said shaft, respectively. As stated, the tank 19 is located near that end of the horn or track 12 adjacent to the mandrel (or extension) 1], and the roller 23 is so positioned and adjusted relative to said horn or track that as a can body 35 is advanced along said horn from the mandrel the interlocked side seam 36 of said body may be held in contact with the cylindrical face of said roller, as shown in Fig. 5. In a mannertoo well known to require detailed descripti on here, upon rotation of said roller with its cylindrical face in contact with the seam of the advancing can body, a portion of the film of solder adhering to the roller will be more or less uniformly scraped off by the seam edge andbe deposited in the ex terior interstice of the seam to fill. seal and strengthen the same.

After the soldering operation, interior support of the can body should be continued advance the can bodies successively from the mandrel along that portion of the horn or track which is contiguous to the soldering mechanism, where the can body actuating and controlling means cannot well be located below the horn, I provide an endless conveyer-chain 37 passing around idler sprocln ets 38, 39 and 40 and around the driving sprocket 41 mounted on a short vertical shaft 42 which is journaled in hearings in the bracket 43 carried by the side-bar 17 of the frame.

Aligned with the shaft 30 and similarly carried by the frame of the machine is a shaft 44, a clutch 45 (the function and operation of which will be hereinafter described) being interposed between these shafts whereby under ordinary or normal conditions they rotate as one, the latter being driven by the former. On the shaft 44 is mounted a bevel-gear 46 the teeth of which mesh with the teeth of a similar gear 47 on the short vertical shaft 42 whereby the sprocket 41 is driven and thereby the conveyer-chain 37.

As set forth in my co-pending application, aforesaid, in order that the can bodies may travelfreely along the horn or track 12 they must be loose thereon, and, if loose. and pressed with sufficient force against the rotating roller 28 to effect the proper application of solder to the seam 36, the roller will tend through friction to rotate the can body on the horn and thereby displace the seam. It has been found, therefore, that it will not suflice merely to provide the chain 37 with lugs or fingers adapted to engage the ends of the can bodies in a common and wellknown manner to advance the latter, but that means must be provided to engage the bodies in such manner as to hold them against rotation on'the horn or track. For this purpose, in addition to the ordinary pusher-lugs or fingers 48 with which certain links 49 of the chain 37 are provided. at suitable intervals, each adapted to engage the end of a can body as it is ejected from the mandrel and advance said body along the horn or track and through the soldering mechanism, I mount upon certain other links 50, proper distances in advance of the links 49 (Fig. 6) yieldingly engaging gripping devices 51 the construction and operation of which are shown and described in detail in my co-pending application, aforesaid. lhcrefore, for the purposes of this description, it will sullice to state that the can bodies 235 are advanced from the mandrel through the soldering mechanism by the lugs or fingers and held against rotation on the horn or track 12 during this portion of their adrancement by the dericesol.

At the end of the shaft id is mounted a bevebgear 52 the teeth of which mesh with the teeth of a similar gear 53 on a shaft 5% joru'nalcd in suitable hearings in the sidebars 16 and 17 of the frame. At the end of the shaft 54 is mounted a pinion 55 .in mesh with a gear 56 on a short shaft 57 journaled in hearings in the frame-bar 1'7. Journaled in bearingjgs in brackets or arms carried at the ends of the track-rails (32 and 63, mounted on the frame-bars 1G and l? and which will be hereinafter described, is the shaft 58, mounted on one end of which is a sprocket- 55) around which passes a chain 60 which also passes around a sprocket 61 on the driven shaft 57, whereby the shaft 58 is rotated. Journalcd in hearings in similar brackets or arms at the other ends of the track-rails 62 and 63 is the shaft 64, and pa 'allel conveyerchains (35 and 66 pass around sprockets 67 and (38. respectively, on the driven shaft 58 and idler sprockets 69 and 70, respectively, on the shaft (34;. Fnd portionsof the conveyors 37 and Gil-66 overlap in relative longitudinal positions, whereby can bodies de-.

liver-ed after advancement by the former may be picked up by the latter and advancement continued to the point of final delivery.

The chains and 66 include special links 71 71, arranged in pairs the members of which are oppositely positioned and the pairs be ing spaced apart a distz'tnce which somewhat exceeds the length of themaximum size of can body which the machine is designed to accommodate. Each pair of links 71 carries a cross-bar 72 at the middle ofqwhich is provided the pusher-lug or finger 73 adapted to engage the end edge of a can body and advance the same with said chains, as best shown in Fig. 7. Journaled in hearings in each pair of said links 71 is a shaft or axle Tel carrying rollers 75 and 76. Between the side-bars 16 and 1'? of the frame are provided cross-bars 7'7 77 upon which mounted. the track-rails (32 and 63, hereinbefore referred to. These track rails are positioned and grooved (as shown in Fig. 8) for the reception and guidance of the rollers 75 and 76. respectively, whereby these rollers and therefore the shaft or axle upon which they are mounted are positively supported as the special chain-links 71 71 are advanced. On each shaft or axle 74L is also mounted, rotatively, a roller 7 8, and the free end of the horn or track. 12 is supported spectively.

same time, the supports are traveling with the advancing can bodies therebetween, wherefore the latter are never passed be tweenthe horn and its support or supports and movement thereof is continuously unobstructed and unimpeded.

The clutch l5, releasably connecting the shafts 3t) and td, is of conventional construction and operation, the connection be ing normally effective and the shaft :44: being released by shifting the lever 81.. Now, if blanks become distorted and jammed in the forming mechanism with can bodies on the horn or track 12 in progressive stages of the soldering operation, the lever 8i may be thrown to release the clutch a5. and thereby, so far as power transmisskm is concerned, segregate the soldering and can-body-advancing mechauisn'ls, whereupon, the primary source of power having been disconnected through operation of a belt-shifter, clutch or other common and well-known instrumentality, actuation of said mechanisms may be continued independently until, con pletion of the soldering operations on all can bodies theretofore delivered from the mandrel to the horn and clearance of all can bodies therefrom.

As a preferred means of continuing independent operation of the soldering and canbody-advancing mechanisms, Ihave shown a handwhee1 82 mounted on the shaft %2, on which is also mounted the driving sprocket l1. Upon releasing the clutch 45, this hand-wheel 82 may be turned, thereby operating said mechanisms independently to complete the soldering operations on can bodies already delivered to the horn and clear the latter.

Numeral 8?) refers to an ordinary fiuxing roller mounted on a short shaft 84:, dipping into a flux box or container 85 and perfornr ing its function in the usual manner. I have shown the shaft 84: driven from the shaft 25 by means of a. cord-belt 80 passing around grooved pulleys 87 and 88011 said shafts, re-

Numeral 89 designates the usual wiping roller, designed to remove the surplus solder and otherwise finish the soldering operation. I have shown the same mounted on a short shaft 90 and driven from the shaft 5-1 by means of a chain 91 passing around suitfable sprockets on said shafts.

To accelerate natural cooling of the parts,

including the advancing can body, and therefore the hardening or setting of the applied solder, I have shown mounted between the track-rails 62 and 63 an elongated cylindrical shell 95, providing an air chamber into which air is directed from one or more supply-pipes 96 leading from any suitable source of compressed air supply. This shell 95 may be perforated in any desired manner to direct ClllTtnt-S oiicool air against certain parts, particularly, however, against the soldered seam of the can body traveling above the same. No patentable novelty is claimed for this expedient other than in combination with can-body advancing means of such characteras exemplified by the device herein shown and described that the freshly soldered side seam of the advancing can body is directly exposed to air currents from a contiguous source of compressed air supply. 1

From the foregoing description it will be seen that in the machine of my invention the free end of the born or track 12 is at all times suitably and adequately supported and yet in such manner that can bodies may be advanced along the same and discharged from the end thereof without contacting with the supporting means; that the soldering and advancing mechanisms may be instantly disconnected, at will, from the canbody-forming and other mechanisms and operated independently to clear the horn and avoid waste; that objectionable rotation of the can body advancing along the horn is prevented during the soldering op eration; and that I have materially simplified the combined processes of advancement, flui'ring, soldering, wiping, cooling and discharging.

Many modifications of minor details of my improved can-body side-seam soldering machine will doubtless readily suggest themselves to those skilled in the art to which it appertains, and I therefore do not desire to limit my inventionto the specific construction of machine herein shown and described.

I claim: 1. In a machine of the character described,

the combination, with a guiding and supthe combination, with a guiding and supporting track for individual work units which surround the same and means for advancing said units successively along said track, of a plurality of supports carried by said advancing means and traveling therewith for sustaining said track.

3. In a machine of the character described,

the combination, with a guiding and supporting track for work which surrounds the same, said track having one tree end, and means for advancing said work along said track and discharging the same from the free end thereof, of a pluralityot supports carried by said advancing and discharging means and traveling therewith for sustaining the free end of said track.

4:. In a machine of the ch aracter described, the combination, with a guiding and sup porting track for individual work units which surround the same, said track having one free end, and means for advancing said units successively along said track and discharging the same from the :tree end thereof, of a plurality of supports carried by said advancing and discharging means and traveling therewith for sustaining said track at points intermediate the advancing units.

5. In a machine of the character described, the combination, with a guidingand sup-- porting track for work which surrounds the same, of an endless conveyor having means for advancing said work along said track, said conveyer also carrying means for sustaining said track.

6. In a machine of the character described, the combination, with a guiding and supporting track for individual work units which surround the same, of an endless conveyer having means for advancing said units successively along said track, said conveyer also being provided with means "for. sustainin said track.

In a machine of the character described, the combination, with a guiding and supporting track for work which surrounds the same, said track having one free end, of an endless conveyor having means for advance ingsaid work along said track and discharging the same from the-free end thereof, said conveyor also being provided with means for sustaining the free end of said track;

8. In a machine of: the character described, the combination, with a guiding and supporting track "for individual work units which surround the same, said track having one free end, of an endless conveyer having means for advancing said units successively along said track and discharging the same from the free end thereof, said conveyor also being provided with means for sustaining the free end of said track.

9. In a machine of the character described, the combination, with means for applying solder to the side seamof a can body in transit, said means including a track having one free end for interiorly guiding and supporting said body, and said track extending a distance beyond the soldering mechanism, and means for advancing can bodies successively along said track and through saidsoldering mechanism, of separate means for continuing advancement and effecting final discharge of said bodies, and means carried by and forming part of said last-mentioned advancing and discharging means for supporting the free end of said track.

10. In a machine of the character lescribed, the combination, with means for applying solder to the side seam of a cam body in transit, said means including a track having one tree end for interiorly guiding and supporting said body, and said track extending a distance beyond the soldering mechanism, and means for advancing can bodies successively along said track and through said soldering mechanism, of separate means for continuing advancement and effecting final discharge of said bodies, and means carried by and forming part of said last-mentioned advancing and discharging means for supporting the free end of said track at points intermediate the advancing can bodies. a

11. In a machine of thecharacter described, the con'ibination, with means for applying solder to the sideseam of a can body in transit, said means including a track having one free end for interiorly guiding and supporting said body, and said track extending a distance beyond the soldering mechanism, and means for advancing can bodies successively along said 3 track and through said soldering mechanism, of separate means for continuing advancement and effecting final discharge of said bodies, and a plurality of supports carried by said lastmentioned advancing and discharging "means for supporting the free end of said track.

12. In a machine of the character described, the combination, with means for applying solder to the side seam of a can body transit, said means including a track having one free end for interiorly guiding and supporting said body, and said track extending a distance beyond the soldering mechanism, and means for advancing can bodies successively along said traclr and through said soldering mechanism, of sep arate means for continuing advancement and effecting final discharge of said bodies, and a plurality of supports carried by said lastmentioned advancing and discharging means for supporting the free end of said. track at points intermediate the advancing can bodies. k

13. In a machine of the character described, the combination, with means for applying solder to the side seam of a can body in'transit, said means including a track havingone free 'end for interiorly guiding and supporting said body, and said track extending a distance beyond the soldering -mecihanism and means for admincing can bod- 'ies successively along said'track and through said soldering mechanism. of an "endless conveyer for continuing advancement and eiiecting 'final :clischarge rot said bodies, said,

nism, and means for advancing can bodies successively along said track and through said soldering mechanism, of an endless conveyor for continuing advancement and efiecting final discharge of said bodies, said conveyer also being provided With means for supporting the free end of said track at points intermediate the advancing bodies.

15. In a machine of the character described, the combination, With a guiding and supporting track for individual Work units which surround the same, and means for advancing said units successively along said track, said means comprisingan endless conveyor having spaced fingers for engaging said units, of a series of track supports carried by said conveyor each locatedjust to the rear of one of said fingers.

16. In a machine of the character de scribed, the combination, With a guiding and supporting track [for individual Work units which surround the same, of means for advancing said units successively along said track, said means comprising an endless conveyor having spaced fingers for "engaging said units. said conveyor being also provided with a series of track-supportingrollers each located just to the rear of one of said fingers, and means for supporting said rollers throughout forward movement thereof.

17. In a machine of the character described, the combination, with means rm.- applying solder to the side seam ofa can body in transit, said means including a track for interiorly guiding and supporting said body extending a distance beyond the soldering mechanism and having its farther end free whereby said body may be discharged therefrom, and means for advancing can bodies in succession along said track and through said soldering mechanism, 10f an endless conveyor for continuing advancement and effecting final discharge of said bodies, said conveyor comprising parallel sprocket-chains, a series of equidistantly-spaced,roller-supported carriages mounted in and between said chains, and track-rails upon which the carriagerollers run, each carriage being pro-' vided wlth means for engaging a "can body and with means for supporting said-track.

'18. In a machine of the characterade in transit, said means including a track for interiorly guiding and supporting said "body extending a distance beyond the soldering mechanism and having; its farther end free whereby said body may be discharged thereironn and means for advancing can bodies in succession nlmig said. track and through said soldering mechanism, of an endless conveyor for continuing advancement and effecting final dicharge of said bodies, said conveyor comprising parallel sprocket-chains, a series oi equidistantly-sg'mced carriages each pro ided with an nine with a roller at each end thereof, and track-rails upon Which said rollers run, said axles being journeled in suitable links in said chains and each carriage being further provided With means for engaging a can body and each axle with an additional roller for progressively supporting said track.

In testimony of the foregoing, I have hereunto set my hand in the presence of two Witnesses.

JULIUS BRENZINGER. Witnesses:

Jimms T. CONNOR,

L. D. J ONES. 

